state gov Bihar Police Constable (सिपाही) Mock Test Series 2025 Quantitative Aptitude Speed Time and Distance Boat and River
A swimmer swims downstream from point A to point B in 4 hours. It covers the same distance upstream in 5 hours. If the speed of the stream is 2 km/h, what is the distance between A and B:
1
80 km
2
72 km
3
60 km
4
100 km